The present study aimed to explore the relationship of romantic jealousy with personality tendencies on the clinical spectrum and psychodynamic personality organizations. A total of 788 individuals, 521 (66.1%) female and 267 (33.9%) male, aged 18-76, participated in this study. The data were collected via the Personal Information Form, Multidimensional Jealousy Scale, Coolidge Axis II Inventory- Turkish Short Form, and Personality Organizations Inventory. Research findings were analyzed using Correlation Analysis, Multiple Linear Regression, and Independent Samples t-test. The results revealed that romantic jealousy was positively associated with borderline personality organization, Paranoid, Antisocial, Narcissistic, Histrionic, and Dependent personality disorder tendencies. Furthermore, the results yielded Paranoid, Antisocial, and Dependent personality disorder tendencies and primitive defenses predicted romantic jealousy. Moreover, it was found that romantic jealousy levels and personality disorder inclinations of the participants with borderline personality organization were significantly higher than those of the neurotic participant group. This study is novel in examining romantic jealousy, a significant issue in clinical psychology literature, through an integrative approach that combines both Cognitive-Behavioral and Psychodynamic perspectives. Furthermore, it is the first study to explore the relationship between psychodynamic personality organizations and romantic jealousy. A limitation of the present study is the use of self-report scales for data collection, which may not fully capture the diversity of participants. Another limitation is the unequal gender distribution between male and female participants. Future research should address these limitations by employing qualitative measurement tools, such as structured interviews.